Observed arrival · 2026-10-18
ka, a coding agent built around a footprint contract
ka is a Rust coding agent presented as a small, model-agnostic binary with terminal, scripting, server, and editor interfaces.
○Open
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✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Rust developers wanting a lightweight coding agent
- Worth noticing
- The homepage lists a 6.25 MB static binary, ≤50 ms cold start, and ≤15 MB idle RSS, checked against CI baselines.
Field notes
Sessions are stored as append-only JSONL strands that can be rewound, forked, exported to Markdown, and replayed with the model choice retained. The homepage lists four interfaces—TUI, headless NDJSON, HTTP/SSE, and editor embedding—and three provider wire protocols. Its safety section names hard stops, stale-edit checks, one-way secret redaction, and an optional Linux filesystem sandbox.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
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